Specifications | Carrier 00EFN900003000A Air Conditioner User Manual

30XA080-350
Remote Cooler Accessory
60 Hz
Installation Instructions
Part Numbers 00EFN900003000A, 00EFN900003100A
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Cooler and Economizer Removal. . . . . . . . . . . . . . . . . 4
Remote Cooler and Economizer Installation. . . . . 10
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air-conditioning
equipment can be hazardous due to system pressures, electrical
components, and equipment location. Only trained, qualified
installers and service technicians should install, start-up, and
service this equipment.
When working on air-conditioning equipment, observe
precautions in the literature and on tags, stickers, and labels
attached to the equipment. Follow all safety codes. Wear safety
glasses and work gloves. Use care in handling equipment.
Be sure power to equipment is shut off before performing
maintenance or service. Lock out and safety-tag all
disconnects.
GENERAL
The remote cooler accessory allows for the indoor relocation of the cooler on 30XA080-350 units as another means of
freeze protection. When the cooler is located in a heated space,
an anti-freeze solution is not needed and the performance
degradation associated with antifreeze solution can be avoided.
Maximum separation of the 30XA base unit and cooler is
limited to 50 lineal ft (15.25 m) or 75 equivalent ft (22 m) of
piping. For more information, refer to the Carrier Piping Design manual.
The liquid and economizer lines between the exteriorinstalled unit and the remote, interior-installed cooler must
have pressure relief devices installed in accordance with
ASHRAE 15 (American Society of Heating, Refrigeration, and
Air Conditioning Engineers) and local codes.
Units to be modified for a remote cooler application must
have the following options:
• Factory-installed suction service valve option.
• Condenser coil type:
— Aluminum fin and copper tube
— Pre-coat aluminum fin and copper tube
— E-coat aluminum fin and copper tube
— Copper fin and copper tube
— E-coat copper fin and copper tube
NOTE: The microchannel heat exchanger option can NOT use
the remote cooler accessory.
The application is limited to the following constraints:
• Operating chilled water temperature is between 40 and 55 F
(4.4 and 12.8 C). When the remote cooler is applied, the
cooler heaters will not function, so it is critical to maintain the
water temperature above the freezing point at all times. If the
water temperature falls below the freezing point, the cooler
does not have protection to keep the water from freezing.
• The interior space temperature where the cooler will be
installed must be maintained at a minimum of 50 F (10 C).
• Underground refrigerant piping is NOT permitted for this
application.
See Table 1 for accessory package usage and see Table 2 for
accessory package contents. In addition to the parts supplied
with each accessory package, the following material must be
field-supplied:
• Refrigerant grade liquid and suction line copper piping for
30XA080-120: circuits A and B and 30XA140-160: circuit
B (length determined by installation). See Tables 3A and 3B
for pipe sizes.
• Schedule 40 steel pipe for 30XA140-160: circuit A and
30XA180-350: circuits A and B (length determined by
installation). See Tables 3A and 3B for pipe sizes.
• 350 psig pressure relief valves and fittings (2 per circuit)
• Suction line tubing insulation (length determined by
installation)
• Economizer line tubing insulation (length determined by
installation)
• 1/2 in. strain relief (2)
• Conduit (length determined by installation)
• ASME (American Society of Mechanical Engineers) B16.9
stub end (4 in. [102 mm]), Schedule 40 Steel (one needed
for 30XA140-160, two needed for 30XA180-350)
• ASME B16.5 Class 600 pipe flange (4 in. [102 mm]) with
field-modified extra mounting hole (one needed for
30XA260-300, two needed for 325, 350)
• Flange mounting hardware
• Extra flange gaskets (if necessary)
The 30XA units use R-134a refrigerant. No other refrigerant may be used in this system. Suction tubing design pressure is 220 psig (1517 kPa). Economizer and liquid tubing
design pressure is 350 psig (2413 kPa). Failure to use gage
set, hoses, and recovery systems designed to handle
R-134a refrigerant may result in personal injury and equipment damage. If unsure about equipment, consult the
equipment manufacturer.
Table 1 — Accessory Package Usage
30XA UNIT SIZE
080-200
220-350
PACKAGE REQUIRED
00EFN900003000A
00EFN900003100A
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300012-01
Printed in U.S.A.
Form 30XA-7SI
Pg 1
1-07
Replaces: New
Book 2
Tab 5c
Table 2 — Accessory Package Contents
ACCESSORY PACKAGE
PART NO.
00EFN900003000A
00EFN900003100A
ITEM NO.
DESCRIPTION
PART NO.
QTY
1
2
Economizer shutoff valve - 11/8 in. (29 mm)
Liquid line shutoff valve - 13/8 in. (35 mm)
00PPG000023501A
EP71BA393
3
5 Wire jacketed cable
RM02EJ200
4
5
6
7
8
10
11
12
13
14
15
16
1
2
Cable assembly
Junction box
Junction box cover
M6 Screws
Cooler pipe flange - 31/8 in. (79 mm)
Flex connector flange - 4 in. (102 mm)
Loose pipe flange - 4 in. (102 mm)
Cooler flange O-ring
Flex connector flange O-ring
Compressor flange gasket - 3 in. (76 mm)
Compressor flange gasket - 4 in. (102 mm)
Transducer wiring harness - 100 ft (30.5 m)
Economizer shutoff valve - 11/8 in. (29 mm)
Liquid line shutoff valve - 13/8 in. (35 mm)
32GB404694
HX30FZ001
HX38ZZ001
00PPN500000302A
00PSN500091400A
00PSG000213300A
00PSG000205100A
KK71EW256
KK71EW250
00PPG000011702A
00PSG000011703A
00PSN500180500A
00PPG000023501A
EP71BA393
3
5 Wire jacketed cable
RM02EJ200
4
5
6
7
8
9
10
11
12
13
14
Cable assembly
Junction box
Junction box cover
M6 Screws
Flex connector flange O-ring
Compressor flange gasket - 4 in. (102 mm)
Compressor flange gasket - 5 in. (127 mm)
Loose pipe flange - 5 in. (127 mm)
Loose pipe flange - 4 in. (102 mm)
Flex connector flange - 4 in. (102 mm)
Transducer wire harness - 100 ft (30.5 m)
32GB404694
HX30FZ001
HX38ZZ001
00PPN500000302A
KK1EW250
00PSG000011703A
00PPG000011704A
00PSG000211900A
00PSG000205100A
00PSG000213300A
00PSN500180500A
2
2
200 ft
(61 m)
5
2
2
8
2
2
2
4
2
2
4
2
2
2
200 ft
(61 m)
5
2
2
8
2
4
4
2
2
2
2
factory charged with compressor oil to the required level.
However, when the double riser is constructed with U-bends or
street elbows, a substantial amount of oil can be trapped in the
U-bend during prolonged minimum load operation. If this
occurs, additional oil is needed to add to the system to prevent
the oil level from dropping below the minimum level in the oil
separator. Add 1 gallon of oil to each circuit. Refer to Controls,
Start-up, Operation, Service, and Troubleshooting Guide for
recommended oil type.
Choose a space that can support the weight of the cooler and
economizer with service clearances and area for refrigerant
piping. Field-supplied piping must be limited to less than
50 lineal ft (15.25 m) or 75 equivalent ft (22 m) in length.
Suction and liquid line risers must be limited to less than 15 ft
(4.5 m) vertical riser elevation. Suction lines and economizer
lines must be insulated to prevent condensation. Relocating the
cooler introduces minimal line losses if correct piping practices
are followed. Buried lines are not permitted.
The remote cooler system can be applied in three different
configurations. See Fig. 1-3. In Fig. 1, the remote cooler and
the outdoor unit are at the same elevation. The suction, liquid,
and economizer lines run parallel between the cooler and the
outdoor unit. In Fig. 2, the outdoor unit and remote cooler are
at the same elevation, but the interconnecting piping has an elevation of up to 15 ft (4.5 m) above the base elevation of the
cooler. This could be result of running piping over a wall or
through the ceiling in a building. In Fig. 3, the remote cooler is
located below the outdoor unit. The interconnecting piping has
an elevation of up to 15 ft (4.5 m) above the base elevation of
the remote cooler. This could occur if the remote cooler is installed in a basement.
NOTE: Unit 30XA refrigeration piping can be either copper
tubing or steel tubing with flanged connections. All units are
Table 3A — Refrigeration Piping and
Connections Material (English)
5/
PIPE SIZE (in.)
7 / , 11 / , 13 / , 15 / ,
8
8
8
8
21/8, 25/8, 31/8
8,
2,
21 /
2,
3,
31 /
2,
4
MATERIAL
Refrigeration copper
Schedule 40 Steel
Table 3B — Refrigeration Piping and
Connections Material (SI)
PIPE SIZE (mm)
16, 22, 29, 35, 41, 54, 67, 79
51, 64, 76, 89, 102
2
MATERIAL
Refrigeration copper
Schedule 40 Steel
INDOOR LOCATION
LEGEND
............ Liquid Line
Economizer Line
Suction Line
30XA
SUCTION
SERVICE
VALVE
a30-4509
REMOTE COOLER
ECONOMIZER
Fig. 1 — 30XA Unit and Cooler Level, Piping Parallel (Single Circuit Shown)
INDOOR LOCATION
30XA
15 FT MAX
LEGEND
............ Liquid Line
Economizer Line
Suction Line
SUCTION
SERVICE
VALVE
REMOTE COOLER
ECONOMIZER
a30-4510
Fig. 2 — 30XA Unit and Cooler Level, Piping Elevated (Single Circuit Shown)
30XA
INDOOR LOCATION
LEGEND
............ Liquid Line
Economizer Line
Suction Line
15 FT MAX
SUCTION
SERVICE
VALVE
REMOTE COOLER
ECONOMIZER
a30-4511
Fig. 3 — 30XA Unit with Cooler Located Below Unit (Single Circuit Shown)
3
SPTs throughout the removal and remote installation processes,
as the SPTs are an important part of the remote installation.
6. Disconnect the electronic expansion valve (EXV) cables
from the EXVs at each economizer. Make sure to label
cables as they are removed. See Fig. 6.
NOTE: The 30XA080 units do not utilize an economizer.
In this case, only the EXVs are present.
7. Unbolt the cooler suction flanges from the cooler. Temporary supports may be needed to support the suction pipes.
See Fig 6.
8. At each circuit’s economizer, cut the liquid lines going to
the economizer assembly before the manual shutoff valve
(see Fig. 6, cut 1, circuits A and B). Cut the cooler liquid
lines between the manual shutoff valve and the cooler
(see Fig. 6, cut 2, circuits A and B). Cut the economizer
lines between the manual shutoff valve and the sensors
(see Fig. 6, cut 3, circuits A and B).
9. Remove the screws from the feet of each economizer.
Save all of the screws. Remove the economizers by carefully sliding them out the cooler side of the unit.
10. Remove the screws from the cooler feet. Save all of the
screws. Slide the cooler slightly to the left to clear the
refrigerant tubing.
11. Remove the cooler by carefully sliding the cooler out the
cooler side of the unit.
INSTALLATION
Shut off all power to this equipment prior to installation.
There may be more than one disconnect switch. Tag all
disconnect locations to alert others not to restore power
until work is completed. Failure to disconnect power from
equipment prior to installation could result in serious
personal injury or death.
1. Inspect package contents for missing or damaged parts.
File a claim with the shipping agency if parts are
damaged and notify your local Carrier representative if
any item is missing.
2. Determine the new location for the cooler. Ensure that the
new location supports the cooler and economizers
weights and that there is enough room for service access
and tube removal. See Tables 4A and 4B to determine
refrigeration line sizes. See Table 5 for cooler and
economizers weights. See Fig. 4A-5B for cooler and
economizers dimensions, tube removal clearances, and
service areas.
3. Open and tag all electrical disconnects.
Cooler and Economizer Removal — The cooler and
economizers are accessible from the cooler side of the unit. To
remove the cooler and economizers from the unit, complete the
following steps:
1. Remove refrigerant from all circuits using standard
refrigeration practices. Refer to unit nameplate or installation instructions for refrigerant quantities.
2. Disconnect the cooler heater wiring, and conduit if
equipped.
3. Remove entering and leaving chilled water temperature
thermistors. Make sure to label thermistors as they are
removed. See Fig. 6.
4. Disconnect and label the chilled water flow switch cable
from the chilled water flow switch located on the leaving
water nozzle. See Fig. 6.
5. Disconnect the suction pressure transducer cables from
the transducers. Make sure to label cables as they are
removed. See Fig. 6.
NOTE: The suction pressure transducers (SPT) do not necessarily need to be removed. However, use care in protecting the
Because 30XA systems use polyolester oil, which can absorb moisture, it is important to minimize the amount of
time that the refrigeration system is left exposed to the atmosphere. Minimizing the exposure time will reduce the
amount of moisture that could possibly damage the unit.
The removal instructions minimize the exposure time to
prevent this type of damage. The remote installation instructions outline a dehydration process to counteract any
exposure that might have occurred.
Before installation of the field-supplied piping, the piping
must be thoroughly cleaned and free of dirt, debris, oil, and
welding residue. Presence of these objects will cause severe
damage to the compressors or other components of the refrigeration system.
4
Table 4A — Refrigeration Line Sizes (English)
30XA
UNIT
SIZE
080
090
100
110
120
140
160
180
200
220
240
260
280
300
325
350
SUCTION LINE
Circuit A
(in.)
3 1 /8
3 1 /8
3 1 /8
3 1 /8
3 1 /8
4
4
4
4
4
4
4
4
4
4
4
Circuit B
(in.)
3 1 /8
3 1 /8
3 1 /8
3 1 /8
3 1 /8
3 1 /8
3 1 /8
4
4
4
4
4
4
4
4
4
DOUBLE SUCTION RISERS
Circuit A
Circuit B
Riser A Riser B Riser A Riser B
(in.)
(in.)
(in.)
(in.)
1 5 /8
2 5 /8
1 5 /8
2 5 /8
5
5
5
1 /8
2 /8
1 /8
2 5 /8
1 5 /8
2 5 /8
1 5 /8
2 5 /8
1 5 /8
2 5 /8
1 5 /8
2 5 /8
1 5 /8
2 5 /8
1 5 /8
2 5 /8
1
5
2
3 /2
1 /8
2 5 /8
2
3 1 /2
1 5 /8
2 5 /8
2
3 1 /2
2
3 1 /2
2
3 1 /2
2
3 1 /2
2
3 1 /2
2
3 1 /2
1
2
3 /2
2
3 1 /2
2 1 /2
3
2
3 1 /2
2 1 /2
3
2
3 1 /2
2 1 /2
3
2
3 1 /2
1
1
2 /2
3
2 /2
3
2 1 /2
3
2 1 /2
3
COOLER
LIQUID LINE
Circuit A
(in.)
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 5 /8
1 5 /8
1 5 /8
1 5 /8
1 5 /8
Circuit B
(in.)
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 5 /8
1 5 /8
CONDENSER
LIQUID LINE
Circuit A
(in.)
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 3 /8
1 5 /8
1 5 /8
1 5 /8
1 5 /8
1 5 /8
Circuit B
(in.)
11/8
11/8
11/8
11/8
11/8
11/8
11/8
13/8
13/8
13/8
13/8
13/8
13/8
13/8
15/8
15/8
ECONOMIZER
LINE
Circuit A
(in.)
—
7/
8
7/
8
7/
8
7/
8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
Circuit B
(in.)
—
7/
8
7/
8
7/
8
7/
8
7/
8
7/
8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
1 1 /8
Table 4B — Refrigeration Line Sizes (SI)
30XA
UNIT
SIZE
080
090
100
110
120
140
160
180
200
220
240
260
280
300
325
350
SUCTION LINE
Circuit A
(mm)
79
79
79
79
79
102
102
102
102
102
102
102
102
102
102
102
Circuit B
(mm)
79
79
79
79
79
79
79
102
102
102
102
102
102
102
102
102
DOUBLE SUCTION RISERS
Circuit A
Circuit B
Riser A Riser B Riser A Riser B
(mm)
(mm)
(mm)
(mm)
41
67
41
67
41
67
41
67
41
67
41
67
41
67
41
67
41
67
41
67
51
89
41
67
51
89
41
67
51
89
51
89
51
89
51
89
51
89
51
89
51
89
51
89
64
76
51
89
64
76
51
89
64
76
51
89
64
76
64
76
64
76
64
76
COOLER
LIQUID LINE
Circuit A
(mm)
29
29
29
29
29
35
35
35
35
35
35
41
41
41
41
41
Circuit B
(mm)
29
29
29
29
29
29
29
35
35
35
35
35
35
35
41
41
CONDENSER
LIQUID LINE
Circuit A
(mm)
29
29
29
29
29
35
35
35
35
35
35
41
41
41
41
41
Circuit B
(mm)
29
29
29
29
29
29
29
35
35
35
35
35
35
35
41
41
Table 5 — Cooler and Economizer Weights
30XA
UNIT SIZE
080
090
100
110
120
140
160
180
200
220
240
260
280
300
325
350
COOLER OPERATING
WEIGHT
lb
1277
1323
1323
1357
1396
1622
1665
1860
1920
1980
2031
2261
2321
2411
2458
2523
kg
580
601
601
617
634
737
757
845
872
900
923
1027
1055
1095
1117
1146
lb
—
45
45
45
45
45
45
55
55
55
60
55
60
60
70
70
5
ECONOMIZER WEIGHT
Circuit A
Circuit B
kg
lb
kg
—
—
—
20
45
20
20
45
20
20
45
20
20
45
20
20
55
25
20
55
25
25
55
25
25
55
25
25
60
27
27
60
27
25
70
32
27
70
32
27
75
34
32
70
32
32
75
34
ECONOMIZER
LINE
Circuit A
(mm)
—
22
22
22
22
29
29
29
29
29
29
29
29
29
29
29
Circuit B
(mm)
—
22
22
22
22
22
22
29
29
29
29
29
29
29
29
29
117-3/4
(2991)
52-1/4
(1327)
13/16
(20)
21-1/32
(534)
8-9/32
(210)
1/2
(13)
DETAIL A
SCALE 2:1
TYP 6 PLACES
52-1/4
(1327)
SIDE VIEW
SEE DETAIL A
14-11/32
(364)
18-21/32
(474)
14-11/32
(364)
14-11/32
(364)
57
(1447)
52-1/4
(1327)
a30-4512
BOTTOM VIEW
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the cooler is 36 in. (914 mm).
3. Recommended cooler tube removal area (either end) is 109 in. (2769 mm).
Fig. 4A — 30XA080-120 Cooler Dimensions
118-13/16
(3017)
52-1/4
(1327)
13/16
(20)
23-1/32
(585)
10-23/32
(272)
1/2
(13)
DETAIL A
SCALE 2:1
TYP 6 PLACES
52-1/4
(1327)
SIDE VIEW
SEE DETAIL A
15-5/16 19-21/32
(499)
(389)
15-5/16
(389)
15-5/16
(389)
64
(1625)
BOTTOM VIEW
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the cooler is 36 in. (914 mm).
3. Recommended cooler tube removal area (either end) is 109 in. (2769 mm).
Fig. 4B — 30XA140, 160 Cooler Dimensions
6
45-1/4
(1149)
a30-4513
119-9/32
(3030)
52-1/4
(1327)
13/16
(20)
25-1/16
(636)
11-3/16
(284)
1/2
(13)
DETAIL A
SCALE 2:1
TYP 6 PLACES
52-1/4
(1327)
SIDE VIEW
SEE DETAIL A
18-3/8 22-11/16
(576)
(466)
18-3/8
(466)
18-3/8
(466)
57
(1448)
52-1/4
(1327)
BOTTOM VIEW
a30-4514
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the cooler is 36 in. (914 mm).
3. Recommended cooler tube removal area (either end) for 30XA180, 200 is 1093/8 in. (2779 mm).
4. Recommended cooler tube removal area (either end) for 30XA220, 240 is 1085/8 in. (2758 mm).
Fig. 4C — 30XA180-240 Cooler Dimensions
118-5/32
(3002)
64-7/8
(1648)
13/16
(20)
1/2
(13)
2
(50)
27-1/8
(689)
11-7/16
(290)
DETAIL A
SCALE 1:1
TYP 6 PLACES
52-9/32
(1328)
SIDE VIEW
SEE DETAIL A
16-3/8
(416)
20-11/32
(516)
20-11/32
(516) 16-3/8
(416)
16-3/8
(416)
20-11/32
(516)
24-21/32
(626)
57
(1448)
52-1/4
(1327)
BOTTOM VIEW
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the cooler is 36 in. (914 mm).
3. Recommended cooler tube removal area (either end) for 30XA260-300 is 1883/8 in. (4784 mm).
4. Recommended cooler tube removal area (either end) for 30XA325, 350 is 23221/32 in. (5910 mm).
Fig. 4D — 30XA260-350 Cooler Dimensions
7
a30-4515
23-1/2
(598)
22-7/8
(581)
7-7/8
(200)
30-3/8
(770)
SIDE VIEW
END VIEW
7/16
(11)
7/8
(21)
6-1/2
(166)
2 x Ø 7/16 (11)
29-3/8
(746)
5/8
(17)
7/16
(12)
TOP VIEW
a30-4516
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the economizer is 36 in. (914 mm).
Fig. 5A — 30XA090-160 Economizer Dimensions
23-1/32
(585)
24-1/4
(611)
7-7/8
(256)
30-3/4
(781)
SIDE VIEW
END VIEW
7/16
(11)
2-1/4
(56)
29-3/8
(746)
7/16
(12)
4 x Ø 7/16 (11)
8-3/4
(222)
7/8
(21)
5/8
(17)
a30-4517
TOP VIEW
NOTES:
1. Measurements are shown in inches (millimeters).
2. Recommended service clearance around the economizer is 36 in. (914 mm).
Fig. 5B — 30XA180-350 Economizer Dimensions
8
9
CUT 4
(SUCTION
LINE)
CIRCUIT B
CUT 2
(COOLER
LIQUID LINE)
MANUAL
SHUTOFF
VALVE
CUT 1
(LIQUID LINE)
a30-4518
30 4518
COOLER
SUCTION
FLANGES
CIRCUIT A
(CONT.)
CHILLED WATER
FLOW SWITCH
CUT 2
(COOLER
LIQUID LINE)
ENTERING CHILLED WATER
LEAVING CHILLED WATER
THERMISTORS
SUCTION PRESSURE
TRANSDUCER
(HIDDEN)
MANUAL SHUTOFF
VALVE
CUT 1
(LIQUID LINE)
Fig. 6 — Typical Cooler Piping-Cooler Side View (30XA140, 160 Shown)
ELECTRONIC
EXPANSION
VALVES (2)
CUT 3
(ECONOMIZER
LINE)
SUCTION PRESSURE
TRANSDUCER
(HIDDEN)
CIRCUIT A
NOTES:
1. Circuit A uses steel suction piping.
2. Circuit B uses copper suction piping.
ELECTRONIC
EXPANSION
VALVES (2)
CUT 3
(ECONOMIZER
LINE)
Remote Cooler and Economizers Installation — Install the cooler and economizers in a remote
location by following this procedure:
NOTE: Throughout the Remote Cooler and Economizers
Installation steps, the two accessory package part no.
(00EFN900003000A, 00EFN900003100A) have been shortened to 3000A and 3100A. When a specific part is referred to
in each accessory’s package, the package no. is mentioned followed by the item no. For item no. identification and accessory
package contents, refer to Table 2.
1. After removing the cooler from the base unit, strip back
the insulation on the cooler tube sheets (if required) and
use the two large holes in the top corners for lifting.
2. Transport the cooler and economizer assemblies to the
new location and secure them into position. Keep the
economizer assemblies as close to the cooler as possible.
Also, ensure there is sufficient room to install and remove
cooler tubes from either end of the cooler. See Fig. 4A4D for tube removal clearances.
NOTE: The 30XA080 units do not utilize an economizer. In
this case, keep the EXV as close to the cooler as possible.
3. Install the accessory-supplied economizer shutoff valves
(3000A or 3100A: Item 1) and liquid line shutoff valves
(3000A or 3100A: Item 2) on the two economizer lines
and liquid lines at circuits A and B on the 30XA base
unit. See Fig. 7.
4. At the new cooler location, connect the field-supplied
cooler liquid line piping between the factory-installed
manual shutoff valve at the two economizer assemblies
and at the cooler. See Fig. 7.
5. Following good piping practices, install additional fieldsupplied liquid and economizer line piping in the required
length to reconnect the two economizer assemblies to the
30XA base unit. See Fig. 8 for double suction riser construction detail.
8.
9.
Do NOT close both manual shutoff valves in one liquid
line. Pressure can build up in the trapped area. To avoid the
possibility of personal injury or property damage, the new
liquid lines between the manual shutoff valves must each
have field-supplied and installed pressure relief valves.
10.
6. For 30XA080-120: all circuits and 30XA140-160: circuit
B, cut the suction pipe (copper) at the 30XA base unit and
discard (see Fig. 6, cut 4, circuit B). Following good
piping practices, install field-supplied copper suction line
piping from the 30XA base unit to the cooler. Use the
accessory-supplied cooler pipe flange (3000A: Item 8),
cooler flange O-ring (3000A: Item 12), and loose pipe
flange (3000A: Item 11) to connect the field-supplied
copper suction line piping at the cooler. See Fig. 9.
NOTE: The original flanges on the cooler and cut from the
30XA base unit may still be usable. However, Carrier recommends and has provided in the accessory kit, parts necessary to
replace both the cooler pipe flange and the suction flange.
When the extended piping is installed, these flanges should be
replaced.
7. For 30XA140-160: circuit A and 30XA180-350: all
circuits, unbolt (DO NOT CUT) the portion of the steel
suction pipes that connected the flex connector flanges to
the cooler at the 30XA base unit and discard. See Fig. 10.
Refer to Table 6 for parts required (field-supplied or
accessory-supplied) to make new connections at the
11.
10
cooler and the 30XA base unit with the field-supplied
steel suction line. See Fig 11. Follow good piping
practices to install field-supplied steel suction line piping
between the cooler and the flex connector at the 30XA
base unit.
When field-supplied flanges and gaskets are used, an
extra M16 mounting hole must be drilled and tapped to
connect a mounting bracket at the 30XA base unit. See
Fig. 10 and 11 for mounting bracket placement. See
Fig. 12 for mounting hole locations.
If additional gaskets are needed for installation, they must
be 1/16 in. non-asbestos fiber with synthetic rubber binder
compressed gasket sheet. An extra mounting hole also
needs to be field modified for any additional gaskets. See
Fig. 12 for mounting hole locations. Field-supplied
mounting nuts and bolts are also needed for fieldsupplied gaskets.
All of the piping connections are now complete. Leak test
the unit and then pull a deep dehydration vacuum. Connect the vacuum pump to the high-flow access fitting at
the bottom of the cooler, the liquid line service valves,
and the economizer line service valves. For best results, it
is recommended that a vacuum of at least 500 microns
(0.5 mm Hg) be obtained. To perform a standing vacuum
rise test, observe the rate-of-rise of the vacuum in the
system. If the vacuum rises by more than 50 microns in a
30-minute time period, then continue the dehydration
process until the standing vacuum requirement is met.
This will ensure a dry system.
By following this dehydration procedure, the amount of
moisture present in the system will be minimized, and the
factory-supplied filter driers will provide adequate
moisture protection. It is highly recommended that the
filter drier cores be replaced after 24 hours of operation.
This is to ensure that any foreign debris that is captured
during start-up is removed from the system. Additional
moisture removal capacity is also provided.
After setup is leak tested and deep dehydration vacuum is
completed, install field-supplied suction and economizer
line insulation between the economizer and the unit. If
necessary, reinstall the insulation on the cooler head.
To reconnect the EXV cables, use the accessory-supplied
cable assemblies (3000A or 3100A: Item 4). Two cables
are needed for the 30XA080 unit, and four cables are
needed for 30XA090-350 units. Take one cable assembly,
and label both ends with “EXV-A” for the circuit A main
EXV. Then label another three cable assemblies the same
way with “EXV-B”, “ECEXV-A”, “ECEXV-B” for the
circuit B main EXV, circuit A economizer EXV, and
circuit B economizer EXV, respectively (economizer
EXV does not apply to 30XA080 units).
Plug one side of the electrical connectors of the EXV
labeled cables into their corresponding EXV plugs. Run
the cables to the 30XA base unit, and plug the other side
of the cable connectors into their corresponding EXV
leads. Coil excess cables and wire tie in a convenient
location.
To reconnect the flow switch cable, use the accessorysupplied cable assembly (3000A or 3100A: Item 4). Take
one cable assembly and label both ends with “CWFS.”
Plug one side of the electrical connector of the labeled
cable into the flow switch plug. Run the cable to the base
unit, and plug the other side of the cable connector into
the flow switch lead. Coil excess cables and wire tie in a
convenient location.
20. To reconnect the suction pressure transducers (SPT),
locate the SPT plugs for circuits A and B, and cut the
leads where they can be conveniently spliced in the
installed junction box at the 30XA base unit. Label the
leads “SPTA” for the circuit A lead, and “SPTB” for the
circuit B lead.
21. Take the two pieces of accessory-supplied transducer
wire harness (3000A: Item 16 or 3100A: Item 14). One
side of the harness is a plug and the other side is three
wires in red, black, and green. Label both sides of one
harness “SPTA,” and label the other harness “SPTB.”
Remove one knockout from an installed junction box and
install a field-supplied strain relief valve at the knockout
hole. If using field-supplied conduit to provide mechanical protection to the transducer wires between the cooler
and the 30XA base unit, remove another knockout.
22. Run the labeled transducer leads connected to the unit
into the installed junction box at the 30XA base unit and
tighten the field-supplied strain relief. Strip back the lead
jackets to expose the three wires, black, red, and white.
23. Run the lead end of accessory-supplied transducer wire
harnesses into the junction box and splice the identically
labeled leads. The red wire should go with red wire, the
black wire with the black wire, and the white wire with
the green wire. Solder the splices and insulate them to
prevent shorting. Tighten the field-supplied strain relief
for the cables and secure the accessory-supplied junction
box cover (3000A or 3100A: Item 6) with accessorysupplied M6 screws.
24. Run the plug end of the accessory-supplied transducer
wire harness back to the cooler. Connect the “SPTA” plug
into the circuit A transducer. Connect the “SPTB” plug
into the circuit B transducer. See Fig. 13.
25. Charge the unit to the amount of refrigerant as specified
on the 30XA base unit nameplate. Because of longer
field-installed liquid, economizer, and suction lines, additional charge is needed. Refer to Table 7 to calculate the
additional charge for each circuit and then add it to the
nameplate charge. Additional charge for the economizer
line is NOT required.
26. Perform all pre-start-up and start-up procedures specified
in the unit operation instructions. Follow the checklist
provided with the unit operation instructions.
27. Verify unit operation.
12. Using the accessory-supplied M6 screws (3000A or
3100A: Item 6), install the accessory-supplied junction
box (3000A or 3100A: Item 5) at the desired location
where the entering and leaving water thermistor cables
can be conveniently spliced. One or two knockouts can
be used. Follow all local codes. Remove one knockout
from the junction box and install the field-supplied strain
relief at the knockout hole. If using field-supplied conduit
to provide mechanical protection to the thermistor wires
between the cooler and the 30XA base unit, remove
another knockout.
13. To reconnect the thermistors, locate the entering water
thermistor and leaving water thermistor and cut both
leads where they can be spliced in the installed junction
box. Cut, strip, and label both sides of the entering water
thermistor lead “EWT.” Cut, strip, and label the leaving
water thermistor lead the same way, with “LWT” on both
sides. See Fig. 13.
14. Run the labeled thermistor leads connected to the unit
into the installed junction box and tighten the fieldsupplied strain relief. Strip back the lead jackets to expose
the two wires in each lead.
15. Take one of the accessory-supplied 5-wire jacketed cables (3000A or 3100A: Item 3) to connect the thermistor
leads in the installed junction box to the cooler location.
Each wire in the jacketed cable is a different color. Cut
the cable into two pieces so that each has a maximum
length of 100 ft (30.5 m).
16. Select one jacketed cable and strip back the jacket on
both ends to expose the five wires. Pick any two wires
and label both ends of each wire “EWT.” Pick another
pair of wires and label both ends “LWT.” The fifth wire is
not used. See Fig. 14.
17. Run one end of the accessory-supplied 5-wire jacketed
cable into the installed junction box and splice the identically labeled thermistor leads. Solder the splices and insulate them to prevent shorting. Tighten the field-supplied
strain relief for the cables.
18. Run the other end of the accessory-supplied 5-wire
jacketed cables back to the cooler. Splice the labeled
jacketed cable wires to the matching thermistors. If a
second junction box is necessary at the cooler location,
use the second accessory-supplied junction box (3000A
or 3100A: Item 5).
19. Reinstall the thermistors in the correct cooler wells.
11
Table 6 — Materials Required for Steel Piping Flange Connections
UNIT
SIZE
140
160
180
200
220
240
260
COOLER PIPE FLANGE CONNECTION
Circuit A
Circuit B
N/A*
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
FLEX CONNECTOR FLANGE CONNECTION
Circuit A
Circuit B
Accessory supplied:
N/A*
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
N/A*
N/A*
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
Accessory supplied:
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3000A: Item 15),
Loose Pipe Flange
(3000A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
Accessory supplied:
Flex Connector Flange
(3000A: Item 10),
Flex Connector Flange
O-ring
(3000A: Item 13)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 12)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 12)
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
LEGEND
3000A — Accessory Package Part No. 00EFN900003000A (30XA080-200)
3100A — Accessory Package Part No. 00EFN900003100A (30XA220-350)
Item — Item No. (See Table 2)
*Copper connection.
12
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
Table 6 — Materials Required for Steel Piping Flange Connections (cont)
UNIT
SIZE
280
300
325
350
COOLER PIPE FLANGE CONNECTION
Circuit A
Circuit B
Field supplied:
Field supplied:
ASME B16.9 Stub End 4 in.
ASME B16.9 Stub End 4 in.
(102 mm)
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Field supplied:
ASME B16.9 Stub End 4 in.
(102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
Accessory supplied:
Compressor Flange Gasket
(3100A: Item 9),
Loose Pipe Flange
(3100A: Item 11)
FLEX CONNECTOR FLANGE CONNECTION
Circuit A
Circuit B
Field supplied:
Accessory supplied:
ASME B16.5 Class 600
Flex Connector Flange
Flange 4 in. (102 mm)
(3100A: Item 13),
Flex Connector Flange
Accessory supplied:
O-ring
Compressor Flange Gasket
(3100A: Item 8)
(3100: Item 10)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Field supplied:
ASME B16.5 Class 600
Flange 4 in. (102 mm)
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
Accessory supplied:
Compressor Flange Gasket
(3100: Item 10)
LEGEND
3000A — Accessory Package Part No. 00EFN900003000A (30XA080-200)
3100A — Accessory Package Part No. 00EFN900003100A (30XA220-350)
Item — Item No. (See Table 2)
*Copper connection.
Table 7 — Additional Refrigerant Charges Required
LINE SIZE
LIQUID LINE
lb (kg) OF
R-134a REFRIGERANT
PER FOOT (305 mm)
SUCTION LINE
lb (kg) OF
R-134a REFRIGERANT
PER FOOT (305 mm)
in.
mm
lb
kg
lb
kg
1 1 /8
29
0.41
0.186
—
—
1 3 /8
35
0.64
0.2903
—
—
1 5 /8
41
0.89
0.4037
—
—
3 1 /8
79
—
—
0.05
0.0227
4
102
—
—
0.09
0.0408
13
Accessory supplied:
Flex Connector Flange
(3100A: Item 13),
Flex Connector Flange
O-ring
(3100A: Item 8)
PRESSURE RELIEF
VALVES (FIELDSUPPLIED)
30XA
ECONOMIZER
LINE
FLANGE
CONNECTION
COOLER LIQUID LINE
(ECONOMIZER TO COOLER)
MANUAL
SHUTOFF
VALVE
LIQUID LINE
(30XA TO
ECONOMIZER)
FLANGE
CONNECTION
SUCTION LINE
MANUAL SHUTOFF
VALVE
ECONOMIZER
COOLER
a30-4519
NOTE: All shaded piping is field supplied and installed.
Fig. 7 — Line Piping and Connections (1 Circuit Shown)
LOOSE PIPE FLANGE
(ACCESSORY-SUPPLIED)
TO 30XA
A
B
O-RING
(ACCESSORY-SUPPLIED)
RED.
TEE
COOLER PIPE FLANGE
(ACCESSORY-SUPPLIED)
FROM
COOLER
45 DEGREE
STR ELLS
90 DEGREE
STR ELLS
a30-4507
LEGEND
RED. TEE — Reducing Tee
STR ELLS— Street Elbows
a30-4520
Fig. 9 — Connect Copper Suction Line at the Cooler
(30XA080-120: All Circuits and
30XA140-160: Circuit B)
Fig. 8 — Double Suction Riser
Construction Detail
14
a30-4521
Fig. 10 — Unbolt Portion Between Flex Connector and Cooler
(30XA140, 160: Circuit A and 30XA180-350: All Circuits)
22.5°
45.0°
7-7/8 (200)
8-1/2 (215.9)
ASME B16.9
STEEL STUB END
(FIELD-SUPPLIED)
PIPE FLANGE
(ACCESSORY-SUPPLIED,
SEE TABLE 6)
EXISTING FLANGE
ON FLEX
CONNECTOR AT
30XA BASE UNIT
MOUNTING
BRACKET
8 HOLES 1 (25)
EQUALLY SPACED
1 EXTRA HOLE M16
a30-4523
NOTES:
1. Measurements are shown in inches (millimeters).
2. Accessory-supplied flanges and gaskets connecting to the flex
connector: extra hole has been factory-drilled and tapped. See
Table 2 (3000A: Item 10, 14, 15 and 3100A: Item 9, 10, 13).
3. Field-supplied flanges and gaskets connecting to the flex connector: extra hole must be field-drilled and tapped (M16).
4. The extra hole allows a bolt to slide through and mount the flanges
and gaskets of the suction line on a mounting bracket at the 30XA
base unit. See Fig. 10 and 11.
a30-4522
Fig. 11 — Connect Steel Suction Line at the 30XA
Base Unit (Shown) and Cooler
(30XA140, 160: Circuit A and
30XA180-350: All Circuits)
Fig. 12 — Flange and Gasket Mounting Locations
15
EW
EW
T
WT
E
LWT
LWT
MAIN
BASE
BOARD
EW
T
LWT
JUNCTION
BOX
(ACCESSORYSUPPLIED)
LWT
STRAIN RELIEF
(FIELD-SUPPLIED)
EWT
LWT
T
5-WIRE CABLE
(ACCESSORY-SUPPLIED)
CONDUIT
(FIELD-SUPPLIED)
a30-4508
Fig. 14 — Typical Junction Box Connections
(EWT and LWT Thermistors Shown)
a30-4524
DPT —
LWT —
OAT —
SPT —
LEGEND
Discharge Pressure Transducer
Leaving Water Temperature
Outdoor Air Temperature
Suction Pressure Transducer
Fig. 13 — Thermistor Connections
Copyright 2007 Carrier Corporation
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300012-01
Printed in U.S.A.
Form 30XA-7SI
Pg 16
3-07A
1-07
Replaces: New
Book 2
Tab 5c
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